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245360453 = 1321451837
BaseRepresentation
bin11101001111111…
…10011101000101
3122002200121021012
432213332131011
51000303013303
640202532005
76036346412
oct1647763505
9562617235
10245360453
11116554a38
126a207005
133baa9a00
142482d109
15168195d8
hexe9fe745

245360453 has 6 divisors (see below), whose sum is σ = 265686354. Its totient is φ = 226486416.

The previous prime is 245360449. The next prime is 245360459. The reversal of 245360453 is 354063542.

It can be written as a sum of positive squares in 3 ways, for example, as 187489 + 245172964 = 433^2 + 15658^2 .

It is not a de Polignac number, because 245360453 - 22 = 245360449 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245360459) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 725750 + ... + 726087.

It is an arithmetic number, because the mean of its divisors is an integer number (44281059).

Almost surely, 2245360453 is an apocalyptic number.

It is an amenable number.

245360453 is a deficient number, since it is larger than the sum of its proper divisors (20325901).

245360453 is a wasteful number, since it uses less digits than its factorization.

245360453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1451863 (or 1451850 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 32.

The square root of 245360453 is about 15663.9858592888. The cubic root of 245360453 is about 626.0391910668.

The spelling of 245360453 in words is "two hundred forty-five million, three hundred sixty thousand, four hundred fifty-three".

Divisors: 1 13 169 1451837 18873881 245360453